LG GU290V Guide De L'utilisateur page 104

Settings
Security
Various codes and passwords
are used to protect the
features and settings of your
phone.
Note: Security code (4
digits)
The security code protects
the unauthorized use of your
phone. The default security
code is set to '0000' and the
security code is required to
delete all phone entries and to
restore the handset to factory
setting.
- Phone Lock: You can use
a security code to avoid
unauthorized use of the
phone.
If you set the Phone Lock to
When Power On, the phone
will request a security code
whenever you switch the
phone on. If you set the
Phone Lock to When SIM
102
Card changed, your phone
will request a security code
only when you change your
SIM Card. If you set the
Phone Lock to Lock Phone
Now, your phone will lock
immediately.
- PIN Code Request: When
the PIN Code Request
feature is turned on, you
must enter your PIN each
time you switch the phone
on. Consequently, any person
who does not have your
PIN cannot use your phone
without your approval.
Note: Before setting the PIN
Code Request feature off, you
must enter your PIN.